Best Programs to Convert DOC to DOCX
There are 15 programs available below that let you convert a DOC file to DOCX format. When choosing software to convert DOC files with the best results, focus on WordPerfect, Microsoft Word and NeoOffice. By converting the file into DOCX format, you can open and modify it with DOCX tools.

Windows

Android

Apple iOS

Online Services
What is file format conversion?
File format conversion is the process of changing a file from one format to another to ensure compatibility with software, systems, or devices, while keeping the structural content of the file intact.
File format conversion becomes necessary when the software or device you want to use does not recognize the original DOC file format. This functionality allows users to work with DOC files in different formats, enhancing compatibility and facilitating information sharing across platforms.
Specially developed programs and online tools are created to handle file format conversion effectively. These tools provide a simple interface to select the DOC file, set the DOCX format, and begin conversion.
How to convert the DOC file to DOCX?
After downloading and installing the converter on your computer, you are ready to convert the DOC file to DOCX format. The typical conversion process is straightforward and follows a consistent pattern. If you are not sure how to convert the DOC file format, these steps will help you through the process:
- Make sure you have located the DOC file you want to convert on your computer;
- Open the conversion application, such as WordPerfect, or any other suitable program;
- Import the DOC file for processing by the converter;
- Select DOCX as the destination output format for the conversion;
- Select the destination folder on your drive to save the converted DOCX file;
- Confirm the conversion and allow the process to complete.
Once the conversion process is complete, you will find the converted DOCX file in the location you selected in step 5.
About the formats
| Extension | DOC |
|---|---|
| File Type | Microsoft Word Document |
| Category | Document Files and Data Files |
| Developed by | Microsoft |
| Format | Binary |
| MIME types | appl/text, application/doc, application/msword, application/vnd.ms-word, application/vnd.msword, application/winword, application/word, application/x-msw6, application/x-msword |
| HEX code | - |
| ASCII code | - |
| Extension | DOCX |
|---|---|
| File Type | Microsoft Word Open XML Document |
| Category | Document Files and Data Files |
| Developed by | Microsoft |
| Format | Zip |
| MIME types | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| HEX code | 50 4B 03 04 |
| ASCII code | PK |
Effective solutions for DOC file problems
If you encounter challenges when trying to open DOC files, we can present a variety of typical resolutions:
- Start by requesting that the original DOC file be resubmitted, since there is a possibility that it has suffered corruption during the transfer;
- Explore the option of downloading an alternative version of the file from the Internet that is more compatible with your platform;
- It is often the case that the file you require has been converted to a DOCX and made available online for you to find.















